Sorry for all the pics, but I'm trying to locate a manual for this incubator. The only info I can make out on it is a metal tag that says Sears Roebuck and Co model number 228.7251 and a sticker that says David Bradley.The closest I can locate is a picture on www.searsarchive.com in the 1951 Spring catalog that looks very similar, but the wording is to grainy to make out. I purchased it from an friends' elderly mother who passed away before being able to locate any paperwork. I also purchased 2 round metal Brower incubators at the same time. Any info at all would be absolutely wonderful! Thank you in advance if you're able to help!